Research purpose: to expose influence of facilities of physical education on the indexes of mental capacity in the conditions of informatization of education. 140 students took part in research (106 youths, 34 girls). The proof-reading in letters test of Burdon-Anfimov was used. The necessity of prophylactic measures is grounded. The complex of restoration exercises is developed on the prophylaxis of overstrain and worsening of perception of educational material at application of information technologies. A complex is counted on implementation of exercises from position «sitting» during 3-4 minutes in a slow rate. A complex includes exercise for a deenergization from brushes hands, eye, necks and weakening of muscles of humeral belt. The facts of increase of coefficient of exactness and mental productivity, volume of visual information, carrying capacity of the sensory system, speed of processing of information, firmness of attention and time of analysis of one sign are set. It is well-proven that facilities of physical education positively influence on the mental capacity of future teachers of physical culture.